Scientists find microplastic debris is as common at the surface as it is at the seafloor.
, said that because of previous research they had expected to find microplastics in the deepest parts of Monterey Bay,"we just didn't know the extent of the absolute amounts that we would find and how they would vary with ocean depth," she toldResearchers used underwater robots to collect the samples from different depths around the Bay. They then filtered the microplastic parts and worked out the concentrations at the different locations.
Findings also showed microplastics were present in the marine creatures sampled as part of the study. They looked at two species—pelagic red crabs and giant larvaceans—and found microplastics were present in every individual sampled. This adds to the evidence that microplastics are entering the food chain via marine environments.Most of the microplastic was that used to make consumer products, such as single use drink bottles and food packaging.
"We looked at the kinds of plastic we sampled from the ocean and two species of marine animals and found they did not match the types of plastic used by local fishery operations, and instead resembled things like PET, from human-derived single use products for example."
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